/* 设置页面背景和字体 */
body {
    font-family: Arial, sans-serif;
    background-color: #f7f7f7;
    margin: 0;
    padding: 0;
  }
  
  /* 登录容器的样式 */
  .login-container {
    width: 100%;
    max-width: 400px;
    margin: 100px auto;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }
  
  /* 标题样式 */
  h2 {
    text-align: center;
    color: #333;
  }
  
  /* 错误信息样式 */
  .error-message {
    color: red;
    text-align: center;
    margin-bottom: 15px;
  }
  
  /* 输入框组样式 */
  .input-group {
    margin-bottom: 15px;
  }
  
  .input-group label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 5px;
  }
  
  .input-group input {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
  }
  
  .input-group input:focus {
    outline: none;
    border-color: #73C7C7;
  }
  
  /* 按钮样式 */
  .submit-button {
    width: 100%;
    padding: 10px;
    background-color: #73C7C7;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .submit-button:hover {
    background-color: #3674B5;
  }
  